potts



(No Model.)

J. G. POTTS.

DEVICE FOR CONVERTING MOTION.

i i L Witness as 2 Sheets-Sheet 1.

Patented Dec. 29, 1885.

Inventor Jaseinh 6. Po Z65 N PETERS. Pholo-lfliwgripher. Washingicn. ac,

(No Model.) I 2 Sheets-Sheet 2. J. G. POTTS. DEVICE FOR CONVERTING MOTION. No. 333,333. P atented Dec. 29, 1885.

FfGL-f N. PETERS, Photo-Lithograph", Washingfion. n c.

NITED STATES PATENT OFFICE,

JOSEPH O. IOTTS, OF BERWYN, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO JOSEPH H. COATES, OF SAME PLACE.

DEVICE FoR CONVERTING MOTION.

' SPECIFICATION forming part of Letters Patent No. 333,333, dated December 29, 1885. Application filed November 21, 1885. Serial No. 183,529. (No model.)

To all whom it may concern:

Be it known that I, J osnrn O. Porrs, a citizen of the United States, residing at Berwyn, Pennsylvania,have invented certain Improvements in Devices for Converting Motion, of which the following is a specification.

The object of my invention is to construct a device whereby a uniform vibrating or reciprocating movement in one direction may be transformed into a differential reciprocating movement in another direction.

My present invention is similar in principle to that described and claimed in my Patent No. 326,777, September 22, 1885, the present device, however, being simpler in detail than that set forth in the patent.

In the accompanying drawings, Figure 1 is a side view of a device embodying my present invention; Fig. 2, a front View of the same, and Figs. 3, 4, 5, and 6 detached views illustrating details in the construction of the device.

The mechanism forming the subject of my invention may be applied to various uses in which it is desired to transform avibrating or reciprocating movement of uniform extent into a differential movement in another direction. The mechanism, for instance, may be used for operating the drop-boxes of a loom or for shifting blocks on the platen ofa colorprinting press, or for other purpose, the device being shown in the drawings, for convenience,as applied to the operation of the shuttle-boxes of a loom.

A is one ofthe fixed side frames ofthestructore, and B a pivoted frame, which in this case is the lathe of the loom. This frame has at the upper end guides for the boxes D, to which differential movement is to be imparted, these boxes being carried by a guided rod, a. To this rod is secured a bracket, b, from which projects a pin, (2, adapted to a slot, d, in a cam, F, the latter being secured to a shaft, g, which is confined laterally to but is free to turn in a bearing, 6, upon the frame B.

Secured to the frame B is anotched disk, f, with which engages lugs 2' on a collar, 0, the latter being free to slide on the shaft 9, but being prevented from turning independently thereofby a key-seat and feather or equivalent means, and being acted on by a spring, h, the

outer bearing of which is against a fixed collar, h, the tendency of said spring being to maintain the lugs 43 in engagement with the notches of the disk f. Hung to a fixed arm, 70, projecting from the frame B, is an arm, H, having a toothed segment, I, which gears into a spur-wheel, G, on the shaft 9, said arm H also carrying projecting arms J J, which form in effect the two arms of a lever having the arm k as its fulcrum. These arms J J are not parallel with the central line of the arm H, each of the arms J J being inclined forward from said central line, and being in the path of projections M on a plate, N, which has a slot, m, for the reception of a guiding-lug, a, pro- 'j ecting from the fixed frame A of the machine.

This plate N is connected by a rod, 19, with a weighted arm, P, hung to the frame A, and acted upon by pins on a patternchain, S. The frame B is intended to be vibrated and the drum of the pattern-chain intermittently rotated from some shaft of the machine of which the device forms part, so that there will be amovement of the pattern-chain to the extent of one pin for each vibration of the frame B. As the frame swings forward it carries with it the shaft 9 and arm is, and the arms J J are brought into contact with the projec- 8o tions M of the plate N. If the arm H is in such position that one of the arms J J is pro jected to a greater extent than the other, this projecting arm will strike the corresponding projection of the plate N, and will be moved rearward until the other arm comes into contact with the other projection of said plate, there being a corresponding movement of the arm H, segment I, spurwheel G, and cam F, so as to effect the desired movement of the rod A. The extent and direction of movement will be governed by the position of the plate N. Thus, supposing the rod (1 to be at the limit of its upward movement and the plate N at the limit 'of its upward movement, a drop of said plate N will cause the lower arm, J, to strike the lower projection of said plate, and before contact of the upper arm, J,with the upper projection the lower arm will have been moved rearward to an extent commen- 10o surate with the drop of the plate, thereby causing such an operation of the cam F as to all of the positions to which said arms are adjusted, each arm has on the contact side a bevel, w, the bevel of each arm resting in con tact with the projection M when the arm is in its highest position.

them when in contact with the projection M whatever the adjustment of the arms may be. The shaft 9, after each adjustment, is locked by the engagement of the lugs z'of the eollar c with one or other of each set of notches of the fixed disk f, the tension of the 'spring h being such that while it can be easilyover- .come when the arms J J are subjected to the action of the projections M it will prevent .the accidental displacement of the shaft gand the parts carried thereby.

.. In order to prevent breakage of any offthe parts when there is anvobstruction preventing the movement of the boxes or otherdevices connected to the rod a, the arms .1 rare pivoted to the arm H, and are under the influence of a spring, H, carried thereby, so

that the movement of either arm J Jis transmitted to the arm H through the medium of, this spring, the latter yielding whenever there is any undue resistance to the movement of the arm and its segment I. I j 1 While the projections M of the plate N, so far as their action upon the arms J J is concerned, may fairly be considered the equiva- ,lents of the bolts M M of the device shownin my former patent, the useof the sliding plate, in combination with the inclined arms J J, effects an important advantage over said pat- .enteddevice in that it enables me to dispense with the locking bolt and levers shown in said patent, the thrust upon the plate N being in aline at right angles to the line of guidance of said plate, so that there is but little, if any, tendency of the plate to be moved vertically from its proper position when either of the arms J J is brought into contact with the projections of said plate.

. security, the guide'slot in the plate Njmay be somewhat wider than the guide-lug, and the adjacent faces of the plateand lug maybe serrated, as shown in Fig. 6, so that the first effect of the contact of eitherof the arms'J J with one of the projections M is to force the plate N rearward, so as to cause these serrated faces to engage with each other and thus 50 effectuallylock the plate, so far as yertical movement is concerned, as long as pressure is exerted upon it. 7 V H Various modications of the means whereby here more than three changes of position are necessary, the arms should be properly formed on their contact, sides to preserve the same distance between For additional of the :J. are transmit- 77 those familiar with mechanical devices-such modifications, for instance, as are described andill ustrated in my former patent.

I claim as myinvention- 1'; The. combination of a vibrating or recip- 7o rocating frame, a lever hung thereto, and an adjustable plate for acting upon said lever as the frame vibrates or reciprocates, the contact-surfaces of the lever-arms being inclined i H respect to each other, all substantially as specified.

2.. The combination of a vibrating or reciprocating frame, a rod guided thereon but free to move inadirection different from that of the movement of theframe, a leve'rhung to the;f1fame,,me'ans whereby the movement tweet r ismnsw e to the od. and. an

adjustable platefqr acting upon the lever as the frame vibrates ior reciprocates, the contact-surfaces of the lever-arms being inclined in respect to each other, all substantially as specified if, 'rh combination ofavibmnng or reciprocating frame, a rod guided thereon but free to move ina direction different from that of the movementjof the frame, a lever hung to the frame, means whereby the movement 'Of the lever is transmitted to the rod, an 'adju stable plate for acting upon the lever as the framevibratesor reciprocates, and apincha'i'n 9 5 or pattern device for adjusting said plate, the. surfaces of the lever-arms with which the plate comes in contact being inclined in respect to each other, all substantially as specified.

4., The combination of a vibrating or reciprocating frame, alever hung thereto and having springarms J J with contact-surfaces inclined in respect to each other, and an adj ustable plate for acting upon said inclined arms as the frame vibrates or reciprocates, all substautiall y as specified.

The combination of a vibrating or recip- T rocating frame, a lever hung thereto and havingarms J J with contactrsurfaces inclined in respect to each other, a spring-retainer for holding the lever in position, in the intervals between its movements, and an adj ustable platefor acting upon said inclined arms 'J J as the frame vibrates orreciproeates, allsubstantially as specified. i The combinationof theadjustable plate N, having aratcheted slot, 'w'ith'the ratchetd,., guide-lug,'.asj setforth. v

Intesti 'ony whereofI havesignedmynanie :20 to this specification in the presence'of two-subl l e Joan E. PA KER,

HARRY SMITH.

ted to the rod a will suggest themselves to 65 

